3D printing preview for stereo-lithography based on photopolymerization kinetic models.

ABSTRACT: The diversity of biomedical applications makes stereolithographic (SL) three-dimensional (3D) printing process complex. A strategy was developed to simulate the layer-by-layer fabrication of 3D printed products combining polymerization kinetic with reaction conditions to realize print preview. As a representative example, the typical UV-curable dental materials based on epoxy acrylate and photoinitiator with different molar ratios was exposed under varying intensity of UV light to verify the simulation results. A theoretical kinetics model containing oxygen inhibition was established. In-situ FTIR was employed to measure propagation and termination constants while coupled UV/vis was performed to examine the law of light attenuation during cure reaction, even with various colours and additi

SUBMITTER: Gao Y 

PROVIDER: S-EPMC7317697 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature